Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2023   18:26:48   (   0.03, -75.20) (  -0.09, -75.71)   57.87                80
 01/04/2023   18:10:43   (   0.02, -75.21) (   0.94, -71.18)  459.16                80
 01/06/2023   06:32:30   (  -0.02, -75.22) (   0.25, -76.45)  140.88                80
 01/07/2023   06:11:06   (  -0.01, -75.22) (  -0.78, -71.93)  376.34                80
 01/08/2023   18:33:01   (   0.02, -75.24) (  -0.46, -77.23)  226.83                80
 01/09/2023   18:16:57   (   0.01, -75.25) (   0.58, -72.70)  290.88                80
 01/11/2023   06:38:44   (  -0.02, -75.28) (   0.61, -77.97)  307.80                80
 01/12/2023   06:17:20   (  -0.02, -75.29) (  -0.43, -73.45)  210.18                80
 01/13/2023   18:39:16   (   0.02, -75.32) (  -0.74, -78.76)  391.86                80
 01/14/2023   18:23:10   (   0.02, -75.34) (   0.24, -74.22)  126.66                80